CN101480109A - Method and system for operating a discharge lamp such as to detect defective operation of the lamp - Google Patents
Method and system for operating a discharge lamp such as to detect defective operation of the lamp Download PDFInfo
- Publication number
- CN101480109A CN101480109A CNA2007800242850A CN200780024285A CN101480109A CN 101480109 A CN101480109 A CN 101480109A CN A2007800242850 A CNA2007800242850 A CN A2007800242850A CN 200780024285 A CN200780024285 A CN 200780024285A CN 101480109 A CN101480109 A CN 101480109A
- Authority
- CN
- China
- Prior art keywords
- lamp
- moment
- controller
- voltage
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/288—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
- H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
- H05B41/2921—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
- H05B41/2925—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A method is described for detecting defective operation of a discharge lamp (7). The method comprises the steps of determining the lamp impedance and establishing that the lamp is operating in an incandescent mode if it is found that the lamp has a positive impedance. The lamp current is varied and the lamp voltage variation in response to the lamp current variation is analyzed to determine the lamp impedance. In a specific embodiment, the lamp current is set at a first magnitude (I(tM1)) at a first measuring moment (tM1) and a first lamp voltage (V(tM1)) occurring at said first measuring moment is measured, while at a second measuring moment (tM2) the lamp current is set at a second magnitude (I(tM2)) different from the first magnitude and a second lamp voltage (V(tM2)) occurring at said second measuring moment is measured, and the relationship between said two lamp voltages is analyzed.
Description
Technical field
Present invention relates in general to high-intensity discharge (HID) lamp, relate in particular to the equipment that is used to operate these lamps.
Background technology
Because the HID lamp is known widely, so needn't be described in detail these lamps at this.In order to understand the present invention, only need explanation HID lamp 7 (see figure 1)s to comprise that the burner 3 that is arranged in the external bulb 1 is just enough.Available gas is filled the space in the external bulb 1, and perhaps the space in the external bulb 1 can be a vacuum; For convenience's sake, in the following description, represent this space with vacuum chamber 2.Represent space in the burner 3 with combustor 4, use the gas discharge igniting and keep the desired suitable chemical substance of this gas discharge to fill space in the burner 3.Burner 3 is provided with lamp electrode (not shown). Line 5,6 has carrying burner 3 and with these lamp electrodes of conduct current and from the function of these lamp electrode derived currents, line 5,6 extends through vacuum chamber 2 and is connected to the lamp base (not shown).Clearly, line 5,6 enters vacuum chamber 2 with each other short distance and extends concurrently basically.
In order to operate, voltage is added on these lamp electrodes, between these electrodes, to form arc gradually.Electrical power is provided by electronic ballast system or electronic driver, and this electronic ballast system or electronic driver are designed for the specific lamp with particular job feature.
The problem of HID lamp is, when these lamps arrive its end-of-life, compares the feature generation acute variation of lamp with normal operating characteristic.The mode of operation that will have this improper character is expressed as " end-of-life pattern " or EOL pattern.
The EOL pattern of particular type especially can appear in the compact low power MH lamp.This failure situations comes from the leakage in the burner 3, and this leakage allows the part of burner filler to enter vacuum chamber 2.Like this, external bulb 1 just can play the effect of " burner ": by the electronic driver igniting, occur discharge between the line 5,6 of (promptly outside the burner 3) in chamber 2.This discharge can cause the metal particle sputter and leave line 5,6, and these particulates can be deposited on the inner surface of the external bulb 1 that approaches line 5,6.If this situation occurs, after certain hour, on the inner surface of external bulb 1, produce metal film, this metal film may conduct electricity, thus conduction current.In this case, electronic driver can move just like the mode of " normal lamp current " with electric current.Because this metal film has resistance, so an ohm power loss can occur, the temperature of metal film raises and this film can be luminous; Therefore, also this fault mode is expressed as " incandescent mode ".
A kind of particular problem of this incandescent mode is to be difficult to detect, because be supplied to the power of lamp can be in the specified power bracket of lamp 7 by electronic driver in this pattern.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of method and apparatus of discharge lamp that be used for detecting reliably with the incandescent mode operation.If detecting discharge lamp moves with incandescent mode, then this lamp can be cut off, and can generate the alarm signal that is used for the user, perhaps both this lamp had been cut off also can generate the alarm signal that is used for the user.
According to importance of the present invention, determine the impedance characteristic of discharge lamp, and if find that light fixture has positive impedance feature (positive impedance characteristic) then infer that lamp moves with incandescent mode.Can determine the lamp impedance in the lamp voltage change that lamp current changes by changing lamp current and analyzing responding.The present invention is based on a kind of like this understanding, promptly the discharge lamp with the incandescent mode operation has the positive impedance feature, and the discharge lamp of normal operation has negative impedance characteristic (negativeimpedance characteristic).
Notice that the electronic driver device itself that has the device that is used for the operation of detection failure lamp is known.For example, US2004/0183463 discloses a kind of electronic driver device of measuring modulating voltage and this modulating voltage and predetermined reference voltage being compared.If this modulating voltage in departing from the certain voltage scope of normal working voltage, is then assert this lamp and is being leaked.But, whether this known equipment can not detect discharge lamp with the incandescent mode operation, because in this case, modulating voltage is often still in normal operating voltage range.
Can determine the impedance characteristic of discharge lamp in several ways.Can increase (or reduction) lamp current during current cycle (a part) gradually: if in response, modulating voltage increases (or reduction), and then this light fixture has the positive impedance feature.Also can during current cycle, increase (or reduction) lamp current by phase step type.Also can during first current cycle, move this lamp, and during second current cycle, move this lamp with second higher (or lower) current amplitude with first current amplitude.
Description of drawings
Will these and other aspect of the present invention, feature and beneficial effect be described by the description of carrying out below with reference to accompanying drawing, in these accompanying drawings, identical Reference numeral refers to same or similar part, wherein:
Fig. 1 schematically shows a kind of HID lamp;
Fig. 2 is the block diagram that schematically shows according to actuator device of the present invention;
Fig. 3 A to 3G is the chart that schematically shows the waveform of lamp current and modulating voltage.
Embodiment
Fig. 2 schematically shows the block diagram according to actuator device 100 of the present invention, as to be designed for driving HID lamp 7.Actuator device 100 comprises electronic driver 10, and electronic driver 10 has and is used to the source that is connected to (as power supply) input terminal 11,12 (mains), and has the lead-out terminal 13,14 that is used to be connected to lamp line 5,6.This system is furnished with the lamp fitting with the lamp base coupling usually, but does not illustrate in the drawings.
Electronic driver itself is known, therefore omits in this description that will carry out the design and running of electronic driver 10.As example, electronic driver 10 can comprise be used for the device of supply voltage rectification, be used for the supply voltage through over commutation be increased to be about 400V roughly in the middle of dc voltage the device that serves as voltage source, be used to the device that serves as current source that reduces this intermediate voltage and produce constant current and be used for the conversion frequency that is about 100Hz converting means with this constant current conversion have the direction that constant amplitude and rule change so that offer the output current of lamp 7.And electronic driver 10 also can comprise the igniter that is used for this lamp igniting.
Now notice, voltage sensor 30 can be combined with controller 20.Voltage sensor 30 also can combine with driver 10.
And, also controller 20 can be combined with driver 10.
According to the present invention, controller 20 is designed for the impedance characteristic of determining lamp 7, and is finding that this lamp impedance characteristic is that timing takes appropriate steps.Preferably in this case, controller 20 cuts off driver 10.Controller 20 also can have warning output 29, and warning output 29 is finding that this lamp impedance characteristic is that timing generates alarm signal Sa, as equally shown in Fig. 2.This alarm signal can be visual signal, voice signal etc.Also can be in conjunction with this alarm signal is sent in the cut-out of driver 10.
In order to determine the impedance characteristic of lamp 7, controller 20 is designed for changes lamp current and analyze the lamp voltage variation that is caused: if higher lamp current is corresponding to higher modulating voltage, then the impedance characteristic of this lamp is for just.With regard in this respect, notice that now the impedance characteristic of this lamp is restricted to the variation in voltage (δ V/ δ I) with respect to the electric current change.
Can change lamp current in several ways.Fig. 3 A to Fig. 3 F is the chart that schematically shows the waveform of the lamp current that is produced by the control signal Sc that suitably generates by controller 20; And these charts also show corresponding modulating voltage.
Fig. 3 A shows the normal conversion electric current that has 50% duty ratio.From time t
0To time t
1, this lamp current has the amplitude I of substantial constant
0And mobile with first direction, and from time t
1To time t
2, this lamp current has identical amplitude I
0But flow in the opposite direction, this electric current is shown-I
0From t
0To t
2The interval will be shown current cycle.Conversion frequency is usually between between the 100Hz to 400Hz, and therefore, this current cycle is usually between 2.5ms and 10ms.From t
0To t
1The interval will be shown wave period; This is at interval corresponding to half of current cycle, and usually between 1.25ms and 5ms.Fig. 3 A also shows modulating voltage substantial constant during each wave period.Fig. 3 A also shows in current cycle subsequently, and current amplitude is substantially equal to current amplitude I
0
Fig. 3 B shows the example that current amplitude reduces gradually during wave period.Therefore, at time t
0, current amplitude I (0) is greater than at time t
1Current amplitude I (1).In the lamp of normal operation, the lamp impedance characteristic is for negative, and therefore, modulating voltage will increase in this wave period scope gradually, wherein, and at time t
0Modulating voltage will be lower than at time t
1Modulating voltage, this is also shown in Fig. 3 B.
Fig. 3 C is similar to Fig. 3 B and shows the example that current amplitude reduces gradually like that during wave period, but is used herein to the trouble light with the incandescent mode operation.Modulating voltage reduces during this wave period gradually, rather than increases gradually, and therefore, the impedance characteristic of this lamp is for just.
Now notice, not strict to the reduction amount of electric current, but should not select De Taigao or too low.For measure clear and fuzzy for the purpose of, this reduction amount is preferably not too low.And because the change of electric current changes corresponding to light output, terminal point should be lower than this predetermined mean value so the starting point of preferred current amplitude should be higher than predetermined mean value, so that the mean time on wave period, electric current keeps predetermined mean value.
Now notice, except reducing electric current, also can use the increase electric current.
Fig. 3 D shows the unessential increase/reduction of lamp current during whole wave period.In shown example, electric current begins to increase with about 30% of wave period, and continues to increase in the rest period of wave period.
Fig. 3 E shows lamp current must not increased gradually/reduce, and is possible but change from the step of first current amplitude to the second difference (higher/lower) amplitude yet.
In fact, all needed be that controller 20 limits at least two time instants and (is shown t in these figure
M1And t
M2), at these two time instants, lamp current I (t
M1) and I (t
M2) differ from one another.Controller 20 these lamp currents of control are also known these lamp currents I (t
M1) and I (t
M2) in which is higher.By measuring the modulating voltage V (t that measures moment at these two
M1) and V (t
M2) and check that in these modulating voltages which is higher, controller 20 can determine that the impedance characteristic of this lamp is for just still negative.
Measure moment t with regard to these two
M1And t
M2, should note following several aspect.In many (if not whole words) discharge lamp, the impedance characteristic of lamp depends on the time, and this expresses the clearlyest in step response (step response).If step ground changes this electric current, then normal discharge lamp can be made a response with positive lamp impedance characteristic during the time interval of several microseconds; With this interval be indicated as positive impedance at interval and this interval can have duration of 1 to 10 μ s usually.Then, during being indicated as the time interval of negative impedance interval, normal lantern festival shows its negative impedance characteristic.This negative impedance interval extends to the scope of millisecond usually.According to the type of lamp, in bigger markers, several seconds even in a few minutes approximately, this impedance characteristic can be once more for just.
And, it shall yet further be noted that the step that these views show electric current is changed to transient change, promptly ad infinitum steep, but in practice, the rise time is about several microseconds.And, it shall yet further be noted that electronic devices and components may stand tolerance, therefore, in timing, can need certain tolerance.And voltage measurement itself as the voltage measurement of being undertaken by sampling and the technology of possessing can spend some times.
Therefore, preferably should after changing, step not select these two to measure moment t immediately
M1And t
M2, but after step changes, should consider certain stand-by period t
WAITThis stand-by period t
WAITExact value not strict; On the one hand, this stand-by period should be sufficiently big, avoiding positive impedance at interval and allow stability in the negative impedance interval, and on the other hand, this stand-by period should be sufficiently little, has in the scope in same waveform as cycle so that this measurement is in this step variation.Be used for this stand-by period t
WAITAppropriate value be about 10 to 100 μ s.Fig. 3 D and Fig. 3 E show first and measure moment t
M1Not with conversion moment t
0Overlap: t
M1〉=t
0+ t
WAITFig. 3 D shows second and measures moment t
M2Though can be in close proximity to conversion moment t
1, but the second measurement moment t
M2Not with conversion moment t
1Overlap; The figure shows and measure moment t second
M2With conversion moment t
1Between time difference be chosen as and t
WAITRoughly the same.
Fig. 3 E shows second and measures moment t
M2Not with conversion moment t
1Overlap and do not change moment t with current step
xOverlap.In this case, second measure moment t
M2Observe formula: t
M2〉=t
x+ t
WAITMeasure moment t in order to ensure second
M2Be in step and change moment t
xHave in the wave period in same waveform as cycle, and in order to ensure measuring moment t second
M2With conversion moment t
1Between the sufficient time difference is arranged, preferred step changes moment t
xObserve formula: t
x≤ t
1-2t
WAIT
Fig. 3 shows the electric current and the voltage waveform of actual measurement.The chart in left side shows electric current (upper curve) and the voltage (lower curve) that is used for lamp, and the chart on right side shows electric current (upper curve) and the voltage (lower curve) that is used for ohmic load.In every kind of situation, during wave period, electric current increases gradually with the amplitude greater than 50%.At the chart in left side as can be seen, it is constant that voltage keeps basically, or even reduce slightly towards the end of wave period.
Those of skill in the art should understand that the present invention is not limited in one exemplary embodiment discussed above, and in by protection scope of the present invention that appending claims limited, several variations and modification can be arranged.
For example, in the superincumbent example, these are measured moment t
M1And t
M2Be limited in the same wave period.Though this is preferred, this is not necessary, shown in Fig. 3 F, in this case, current amplitude during the first wave period A is constant, and the current amplitude during the second wave period B is constant, but is higher than the current amplitude during the first wave period A.Therefore, these are measured moment t
M1And t
M2Be each defined in these two the different wave period A and B.In shown example, about corresponding conversion middle these measurements moment t that selects of moment
M1And t
M2
And, also can measure moment t with these two
M1And t
M2Be limited in each wave period, so that controller 20 is checked twice lamp impedance in each current cycle.Though this is preferred, this is not necessary.For example, but also only check a lamp impedance each second.But, in fact because lamp impedance inspection relates to the electric current change, and the electric current change is accompanied by light output change, thus preferably carry out the inspection of lamp impedance with the repetition rate that is higher than 100Hz, to avoid tangible flickering (flicker).
And controller 20 also can always be used for the inspecting lamp impedance.But, controller 20 can also be optionally with two kinds of operational mode operations, and a kind of normal mode and a kind of diagnostic mode in normal mode, keep lamp current constant, and in diagnostic mode, sort controller move as previously described.For example, controller 20 can with in response to the reception to user command, perhaps in preset time (as per hour once) operation at interval, perhaps move in the predetermined time interval after starting according to its diagnostic mode operation.
In the description in front, describe the present invention with reference to block diagram, these block diagrams show the functional block according to equipment of the present invention.Should understand, can in hardware, realize one or more in these functional blocks, in this hardware, the function of this functional block is carried out by the separate hardware components and parts, but also can in software, realize one or more in these functional blocks, so that the function of this functional block is carried out this programmable device such as microprocessor, microcontroller, digital signal processor etc. by the delegation in the program line of computer program or multirow or programmable device.
Claims (18)
1. be used to detect the method for the defective operation of discharge lamp, said method comprising the steps of: determine the impedance characteristic of described lamp, and if find that described light fixture has the positive impedance feature, infer that then described lamp moves with incandescent mode.
2. the method for claim 1, wherein: change described lamp current, and to analyzing in response to the described lamp voltage variation of described lamp current change.
3. the method for claim 1, wherein: described lamp current is arranged to have first measures moment (t
M1) first amplitude (I (t
M1)) and have be different from described first amplitude measure moment (t second
M2) second amplitude (I (t
M2)); Measurement is measured moment (t described first
M1) the first modulating voltage (V (t that occurs
M1)), and measure described second and measure moment (t
M2) the second modulating voltage (V (t that occurs
M2)), and the relation between described two kinds of modulating voltages analyzed.
4. method as claimed in claim 3, wherein: if described first modulating voltage (V (t
M1)) and described second modulating voltage (V (t
M2)) ratio greater than 1 described first lamp current amplitude (I (t
M1)) and described second lamp current amplitude (I (t
M2)) ratio also greater than 1, perhaps if described first modulating voltage (V (t
M1)) and described second modulating voltage (V (t
M2)) ratio less than 1 described first lamp current amplitude (I (t
M1)) and described second lamp current amplitude (I (t
M2)) ratio also less than 1, then establish described lamp and move with incandescent mode.
5. method as claimed in claim 3, wherein: during at least a portion of wave period, increase or reduce described lamp current gradually, and in identical wave period, select described first to measure moment (t
M1) and the described second measurement moment (t
M2).
6. method as claimed in claim 3, wherein: during wave period and at step transformation period (t
x) locate the phase step type increase or reduce described lamp current, and in identical wave period, at described step transformation period (t
x) select described first to measure moment (t before
M1) and at described step transformation period (t
x) select described second to measure moment (t afterwards
M2).
7. method as claimed in claim 6, wherein: at described step transformation period (t
x) and the described second measurement moment (t
M2) between the time interval equal the stand-by period (t that is scheduled at least
WAIT).
8. method as claimed in claim 7, wherein: described lamp is the lamp with following impedance characteristic type, described impedance characteristic changes interim very first time of putting on when the microsecond at first for just in response to step current, be negative then during extending to second time interval of millisecond scope, and described predetermined stand-by period (t
WAIT) be longer than the described very first time basically at interval.
9. method as claimed in claim 3, wherein: the described lamp current that will be in first wave period is set to the amplitude that is different from the lamp current that is in second wave period, and selects described first to measure moment (t respectively in the described first and second different wave periods
M1) and the described second measurement moment (t
M2).
10. method as claimed in claim 3, wherein: move described lamp with the conversion electric current, at conversion moment (t
0) select described first to measure moment (t afterwards
M1), and at described conversion moment (t
0) and the described first measurement moment (t
M1) between the time interval equal the stand-by period (t that is scheduled at least
WAIT).
11. method as claimed in claim 3, wherein: in each wave period, select described first to measure moment (t
M1) and the described second measurement moment (t
M2).
12. the method for claim 1, wherein: when inferring that described lamp moves with incandescent mode, automatically described lamp is cut off and/or generates alarm signal (S
A).
13. be used for the controller (20) of lamp driver system (100), described controller (20) comprising:
Control output end (25), described control output end (25) is used to be coupled to the control input end (15) of controlled electron driver (10), described design of Controller is used for (25) generation control signal (SC) in its control output end, is used for the amplitude of control by the lamp current of described electronic driver (10) generation;
Transducer input (23), described transducer input (23) is used for the sensor signal (S of codan lamp voltage
V);
Wherein: described controller (20) is designed for the impedance characteristic of determining described lamp, and if infer that when finding that described light fixture has the positive impedance feature described lamp moves with incandescent mode.
14. controller as claimed in claim 13, wherein: described design of Controller is used to generate its control signal (S
C) to cause predetermined lamp current change, sensor signal (S effectively to locating to receive at transducer input (23)
VIf) analyze to detect lamp voltage variation in response to described lamp current change, to determine described lamp impedance characteristic on the basis of described analysis and inferring that described lamp moves with incandescent mode at described analysis result during corresponding to the positive impedance feature.
15. controller as claimed in claim 13, wherein: described design of Controller is used for carrying out each the described method according to claim 3 to 12.
16. be used to drive the drive system (100) of discharge lamp (7), described system comprises:
Electronic driver (10), described electronic driver (10) have the lead-out terminal (13,14) that is used to be connected to described lamp (7), and described design of Driver is used for locating to provide the conversion electric current at its lead-out terminal (13,14);
Voltage sensor (30), described voltage sensor (30) are used for the described modulating voltage of sensing and the output signal (S of the measured modulating voltage of expression are provided
V);
Controller (20), described controller (20) receives the described output signal of described voltage sensor (30);
Wherein, described controller (20) is designed for the described voltage measurement output signal (S to described voltage sensor (30)
V) analyze to detect defect situation;
It is characterized in that: described electronic driver (10) is the controllable driver with control input end (15), and described electronic driver (10) is designed for the control signal (S that receives according in its control input end (15)
C) amplitude of its output current is set;
Described controller (20) has the control output end (25) of the control input end (15) of being coupled to described electronic driver (10), to control the amplitude of described lamp current;
Wherein, described controller (20) is designed for the impedance characteristic of determining described lamp, and if infer that when finding that described light fixture has the positive impedance feature described lamp moves with incandescent mode.
17. drive system as claimed in claim 16, wherein: described controller (20) is designed for and generates its control signal (S
C) with cause the change of predetermined lamp current effectively, to modulating voltage measuring-signal (S from voltage sensor (30)
VIf) analyze to detect lamp voltage variation in response to described lamp current change, to determine described lamp impedance characteristic on the basis of described analysis and inferring that described lamp moves with incandescent mode at described analysis result during corresponding to the positive impedance feature.
18. drive system as claimed in claim 16, wherein: described controller (20) is designed for execution according to each the described method in the claim 3 to 12.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06116034.7 | 2006-06-26 | ||
| EP06116034 | 2006-06-26 | ||
| PCT/IB2007/052145 WO2008001245A1 (en) | 2006-06-26 | 2007-06-07 | Method and system for operating a discharge lamp such as to detect defective operation of the lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101480109A true CN101480109A (en) | 2009-07-08 |
| CN101480109B CN101480109B (en) | 2012-09-26 |
Family
ID=38456545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800242850A Expired - Fee Related CN101480109B (en) | 2006-06-26 | 2007-06-07 | Method and system for operating a discharge lamp such as to detect defective operation of the lamp |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8174211B2 (en) |
| EP (1) | EP2036408B1 (en) |
| JP (1) | JP5048769B2 (en) |
| CN (1) | CN101480109B (en) |
| AT (1) | ATE460828T1 (en) |
| DE (1) | DE602007005258D1 (en) |
| WO (1) | WO2008001245A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009115983A1 (en) * | 2008-03-19 | 2009-09-24 | Koninklijke Philips Electronics N.V. | End-of-life protection circuit for high-intensity discharge lamp |
| DE102008016753A1 (en) | 2008-03-31 | 2009-10-01 | Tridonicatco Schweiz Ag | Detection of the type of high pressure (HID) discharge lamp |
| DE102012209780B4 (en) * | 2012-06-12 | 2014-09-25 | Osram Gmbh | METHOD FOR OPERATING A LAMP, CIRCUIT ARRANGEMENT AND LAMP |
| TWI498050B (en) | 2012-09-05 | 2015-08-21 | Inst Information Industry | Streetlamp fault detection apparatus and streetlamp fault detection method thereof |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US183463A (en) | 1876-10-17 | Improvement in feed-water heaters | ||
| DE19819510B4 (en) | 1997-04-30 | 2009-04-16 | Toshiba Lighting & Technology Corp. | Circuit arrangement for igniting and operating a discharge lamp |
| GB2326543B (en) * | 1997-06-19 | 1999-12-08 | Toshiba Lighting & Technology | Lighting apparatus |
| DE19937422A1 (en) | 1999-08-07 | 2001-02-22 | Philips Corp Intellectual Pty | Method and arrangement for monitoring a gas discharge lamp |
| US6362573B1 (en) * | 2000-03-30 | 2002-03-26 | Hewlett-Packard Company | Apparatus and method for monitoring the life of arc lamp bulbs |
| US6664790B2 (en) * | 2000-12-29 | 2003-12-16 | General Electric Company | Automated diagnostic tester for HID lamp luminaires |
| US6774768B2 (en) * | 2001-12-03 | 2004-08-10 | Hubbell Incorporated | System and method for cycling a metal-halide lamp on and off at designated intervals to reduce risk of arc tube rupture |
| JP2003264093A (en) * | 2002-01-07 | 2003-09-19 | Mitsubishi Electric Corp | Lighting device for high pressure discharge lamp |
| US6864645B2 (en) * | 2003-03-05 | 2005-03-08 | Matsushita Electric Works, Ltd. | Method and circuit for driving a gas discharge lamp |
| CN1981562B (en) | 2004-04-23 | 2011-07-13 | 松下电器产业株式会社 | Lighting system |
| JP4757613B2 (en) * | 2005-11-24 | 2011-08-24 | オスラム・メルコ株式会社 | High pressure discharge lamp lighting device |
| US7619362B2 (en) * | 2007-08-09 | 2009-11-17 | Osram Sylvania Inc. | Outer jacket leak detection method and ballast implementing the method |
-
2007
- 2007-06-07 EP EP07766670A patent/EP2036408B1/en not_active Not-in-force
- 2007-06-07 WO PCT/IB2007/052145 patent/WO2008001245A1/en active Application Filing
- 2007-06-07 CN CN2007800242850A patent/CN101480109B/en not_active Expired - Fee Related
- 2007-06-07 JP JP2009517493A patent/JP5048769B2/en not_active Expired - Fee Related
- 2007-06-07 AT AT07766670T patent/ATE460828T1/en not_active IP Right Cessation
- 2007-06-07 US US12/305,019 patent/US8174211B2/en not_active Expired - Fee Related
- 2007-06-07 DE DE602007005258T patent/DE602007005258D1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2036408A1 (en) | 2009-03-18 |
| JP2009541969A (en) | 2009-11-26 |
| US20090134878A1 (en) | 2009-05-28 |
| WO2008001245A1 (en) | 2008-01-03 |
| CN101480109B (en) | 2012-09-26 |
| ATE460828T1 (en) | 2010-03-15 |
| DE602007005258D1 (en) | 2010-04-22 |
| EP2036408B1 (en) | 2010-03-10 |
| US8174211B2 (en) | 2012-05-08 |
| JP5048769B2 (en) | 2012-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1097419C (en) | Method for igniting and operating high-pressure discharge lamp and circuit for performing the method | |
| US8207739B2 (en) | Identification of an absent load from a circuit | |
| CN101480109B (en) | Method and system for operating a discharge lamp such as to detect defective operation of the lamp | |
| CN1143607C (en) | Detection circuit for detecting arc instabilities of high intensity discharge lamp | |
| CN101209002A (en) | High pressure lamp with lamp flicker suppression and lamp voltage control | |
| CN102123555A (en) | HID (High Intensity Discharge) lamp electronic ballast and multimode control method thereof | |
| JP2009008679A (en) | Tester for illuminating means | |
| US7482762B2 (en) | Discharge lamp ballast with detection of abnormal discharge outside the arc tube | |
| JP2008529245A (en) | High pressure discharge lamp operating method, high pressure discharge lamp operating device and lighting device | |
| JP2008517438A (en) | Gas discharge lamp monitoring method and arrangement, program, video projector | |
| KR20060128965A (en) | Method and ballast for driving a high-pressure gas discharge lamp | |
| US20100026210A1 (en) | Apparatus for driving a gas discharge lamp | |
| KR100675515B1 (en) | A dimmer of electrodeless induction discharge lamp | |
| EP2170018A1 (en) | AC delay angle control for energizing a lamp | |
| KR20010041876A (en) | Circuit arrangement | |
| Azcondo et al. | Effects of flicker on different types of 150-w high-pressure sodium lamps and ballasts | |
| Rodrigues et al. | Electronic ballast for hps and hpmv lamps testing in dimming mode | |
| Azcondo et al. | Voltage fluctuations in lamps and ballasts | |
| Anton et al. | Measurement system for characterization of high intensity discharge lamps (HID) operating at high frequency | |
| Siessegger et al. | Characterization of acoustic resonances in HID lamps based on relative impedance difference with an automated measuring station | |
| JP2002164184A (en) | Lighting method of rare gas discharge lamp and rare gas discharge lamp device | |
| JP2006120354A (en) | Measuring method of work function and work function measuring device of electrode of discharge lamp | |
| CN103379720A (en) | Discharge lamp lighting device, and headlight and vehicle including same | |
| JP2006073348A (en) | Lamp breakage detection device and lamp breakage detection method using it | |
| AU2008100056A4 (en) | An electronic ballast igniter circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20150607 |
|
| EXPY | Termination of patent right or utility model |